across america, these technologies protect air - by monitoring air quality and reducing emissions... ...protect water - through conservation and self-contained recycling systems... ... and protect land - by reducing our footprint and respecting wildlife. america's natural gas... domestic, abundant, clean energy to power our lives... that's smarter power today. neural speeds increasing to 4g lte. brain upgrading to a quad-core processor. predictive intelligence with google now complete. introducing droid dna by htc. it's not an upgrade to your phone. it's an upgrade to yourself. >>> we're back with tonight's "outer circle" where we reach out to our sources from all over the world. to seoul where they are getting ready to react to an expected missile launch by north korea this month. paula hancocks is following this story. i asked her what more we know about north korea's plans. >> tom, as north korearies. to launch its second rocket this year, as early as monday, the u.s. is making preparations of its own. the navy is moving two guided missile destroyers to the region, although they'r